Slip joint

Claim 1

A SLIP JOINT BETWEEN A PAIR OF SHAFTS COMPRISING A TUBULAR HOUSING CONNECTED TO ONE END OF ONE SHAFT, A PLURALITY OF ELONGATED LUGS DISPOSED IN AND ATTACHED TO THE INSIDE SURFACE OF SAID HOUSING, SAID LUGS EXTENDING AXIALLY OF SAID HOUSING AND RADIALLY INWARDLY, AXIALLY EXTENDING RESILIENT INSERTS HAVING RADIAL SURFACES ATTACHED TO OPPOSED RADIAL SURFACES OF EACH OF SAID LUGS, AND AN END PORTION OF THE OTHER SHAFT HAVING CIRCUMFERENTIALLY SPACED EARS, SAID EARS EXTENDING RADIALLY OUTWARDLY OF SAID END PORTION, SAID END PORTION BEING TELESCOPICALLY RECEIVED IN SAID HOUSING WITH THE CENTER AXIS OF SAID END PORTION BEING IN A CONCENTRIC RELATIONSHIP TO THE AXIS OF ROTATION OF SAID HOUSING AND WITH THE RADIAL SURFACES OF SAID EARS IN ENGAGEMENT WITH THE RADIAL SURFACES OF SAID INSERTS, THE SURFACE TO SURFACE ENGAGEMENT OF SAID INSERTS AND SAID EARS BEING CHARACTERIZED BY LOW LINEAR FRICTION DURING AXIAL MOVEMENT BETWEEN SAID PAIR OF SHAFTS, THE RESILIENT INSERTS SUBSTANTIALLY PREVENTING RELATIVE ROTARY MOVEMENT BETWEEN SAID PAIR OF SHAFTS AND ALSO CUSHIONINGLY INHIBITING THE TRANSMISSION OF NOISE AND VIBRATION THEREBETWEEN.